28/03/2020 Ideal Gases and Thermal Expansion(Senior Class Physics Study by Topics) 0Comments by Gate Academy Welcome to your Ideal Gases and Thermal Expansion(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. As the volume of confined gas decreases at the constant temperature, the pressure exerted by the gas ______. DecreasesFluctuateStay the sameIncreases2. A container of nitrogen gas contains 40 g of nitrogen gas at a pressure of 4 atm, and has a temperature of 50C. Given this information, the volume must be _____ liters.3.349.4712.996.673. A sample of Argon has a volume of 0.43 mL at 299K. At what temperature in degrees Celsius will it have a volume of 1 mL. 694°C428°C695°C422°C4. Which of the following is NOT a method of transporting heat energy from one place to another ConductionCondensationConductionRadiation5. In which direction in a fluid at rest is the pressure the greatest at a given depth?UpwardDownwardHorizontalThe pressure is the same in all directions6. A platinum resistance thermometer has resistance of 52.5 ohms and 9.75 ohms at 0 degrees Celsius and 100 degrees Celsius respectively. When the resistance is 8.25 ohms, find the temperature84:6oC66:7oC75:0oC63:6oC7. The atomic mass of carbon dioxide is 44 atomic mass units. What is the atomic mass of oxygen if each molecule contains one atom of carbon and two of oxygen?162212108. Which of the following explains why we feel cool when we stay very close to a fan? HumidityEvaporationTemperatureWind9. When a supply of hydrogen gas is held in a 4-liter container at 320 K it exerts a pressure of 800 torrs. The supply is moved to a 2-liter container, and cooled to 160 K. What is the new pressure of the confined gas? 800 torr400 torr1600 torr200 torr10. Each of these flasks contains the same number of molecules. In which container is the pressure highest? Flask 4Flask 2Flask 3Flask 111. Avogadro suggested that each liter of gas under identical conditions has the sameDensityMassNumber of molesNumber of molecules12. In a closed container at 1.0 atmosphere, the temperature of a sample of gas is raised from 300 K to 400 K. What will be the final pressure of the gas? 1.3 atm0.010 atm0 atm100 atm13. Four liters of an ideal gas is heated from 200 K to 400 K in a container with a fixed volume. If the initial pressure was 1 atm, what is the final pressure?0.25 atm2 atm4 atm0.5 atm14. According to Charles Law, if you have a balloon inside a car at noon during a hot summer day, the balloon molecules inside will increase in pressure.TrueFalse15. Assuming that the temperature remains constant. How can you increase the pressure of a gas? Decrease the container volumeAdd more molecules of the gasNone of the aboveIncrease the container volume16. You have two cubes of the same size, one made of aluminum and the other of lead. Both cubes are allowed to sink to the bottom of a water-filled aquarium. Which cube, if either, experiences the greater buoyant force?I will let computer choose for meBoth cubes experience the same buoyant forceThe lead cubeThe aluminum cube17. The mass of an oxygen molecule is 16 times that of a hydrogen molecule. If the gases are maintained at the same temperature, what is the ratio of the rms speed of an oxygen molecule to that ofa hydrogen molecule?1/41641/1618. Each of these flasks contains the same number of gas molecules. In which would the pressure be lowest? Flask 4Flask 2Flask 1Flask 319. At a pressure of 5.0 atmospheres, a sample of gas occupies 40 liters. What volume will the same sample hold at 1.0 atmosphere?8.0 L0.13 L0.0050 L200 L20. Three spheres have the same mass and all float in water. Spheres A, B, and C have volumes of 2 cm3, 25 cm3, and 30 cm3, respectively. Which sphere floats the highest? ABCThey all float at the same height21. What is the force that binds materials together?Van de WaalGravitationalElectricStrong nuclear22. The Kelvin temperature scale has the same size degree as the_____ scale and its zero is _____ degrees lower.Celsius ... 459Fahrenheit ... 273Celsius ... 273Fahrenheit ... 45923. What is the force that binds atoms together?GravitationalNuclearMagneticElectric24. A small sample of helium gas occupies 6 mL at a temperature of 250 K. At what temperature does the volume expand to 9 mL?500K125K375K2250K25. What Kelvin temperature corresponds to room temperature of 20 degrees Centigrade 20 K253 K273 K293 K26 out of 25Time is Up!
